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cogl-material: Fix the check to prevent using too many layers

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There was a check at the bottom of the loop which sets up the state
for each of the layers so that it would break from the loop when the
maximum number of layers is reached. However after doing this it would
not increment 'i'. 'i' is later used to disable the remaining layers
so it would end up disabling the last layer it just set up.

This patch moves the check to be part of the loop condition so that
the check is performed after incrementing 'i'.

http://bugzilla.openedhand.com/show_bug.cgi?id=2064
This commit is contained in:
Neil Roberts 2010-04-27 16:38:07 +01:00
parent d5d98500be
commit 3e88dee1a3
1 changed files with 4 additions and 5 deletions
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9
cogl/cogl-material.c
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@ -1469,8 +1469,10 @@ _cogl_material_flush_layers_gl_state (CoglMaterial *material,
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
for (tmp = material->layers, i = 0; tmp != NULL; tmp = tmp->next, i++)
{
for (tmp = material->layers, i = 0;
tmp != NULL && i < _cogl_get_max_texture_image_units ();
tmp = tmp->next, i++)
{
CoglHandle layer_handle = (CoglHandle)tmp->data;
CoglMaterialLayer *layer =
_cogl_material_layer_pointer_from_handle (layer_handle);
@ -1621,9 +1623,6 @@ _cogl_material_flush_layers_gl_state (CoglMaterial *material,
g_array_append_val (ctx->current_layers, new_gl_layer_info);
layer->flags &= ~COGL_MATERIAL_LAYER_FLAG_DIRTY;
if ((i+1) >= _cogl_get_max_texture_image_units ())
break;
}
/* Disable additional texture units that may have previously been in use.. */